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Home >> Pontiac >> 2004 >> Aztek Base, AWD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transaxle - 4T65-E - Overhaul >> Repair Instructions >> Case Assembly Inspection
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Case Assembly Inspection

  1. Inspect the components that are still on the transmission case for the following conditions:
    • Loose, cross-threaded, or damaged pipe fittings on the transmission oil cooler
    • A loose, missing, or damaged transmission name plate
    Fig 1: Transmission Case Inspection Points
    GM48672Courtesy of GENERAL MOTORS CORP.
  2. Inspect the transmission case for the following conditions:
    • Gasket sealing surfaces that are damaged or which have porosity
    • Bolt or screw holes that are stripped or damaged (repair with a thread insert)
    • Damaged or porous case oil passages
    • Damaged snap ring grooves or housing splines
    • Loose, missing, or damaged band anchor pins
    • Damaged or porous case surfaces
    • Plugged drain back holes for the torque converter oil seal
  3. Inspect the components that are still on the transmission case for the following conditions:
    • A loose, plugged, or damaged transmission vent assembly
    • A loose, cross-threaded, or damaged oil pressure test hole plug
    Fig 2: View Of Vent Assembly & Oil Pressure Test Hole Plug
    GM48679Courtesy of GENERAL MOTORS CORP.